TESTO 400 - Humidity Calibration

9 Operation
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9.7.6 Humidity calibration
For humidity calibration, the measurement parameter of the connected
probe is adjusted to the reference value at the two
standard adjustment
points 11.3 %RH and 75.3 %RH; any measuring value deviations from
the nominal value are minimized across the entire measuring range.
The Testo calibration set provides a reference value to calculate the
offset for a humidity calibration.
Humidity calibration is possible with the following probes:
Order no. Designation
0636 9771
High-precision temperature/humidity probe with Bluetooth
®
0636 9772
High-precision temperature-humidity probe, fixed cable
0636 9731
Temperature/humidity probe with Bluetooth
®
0636 9732
Temperature/humidity probe, fixed cable
0636 9775
Robust temperature/humidity probe for temperatures up to
+180 °C, fixed cable

The probe is connected to the testo 400.
1
Click on .

Main menu opens.
2
Click on Sensors.

The Sensors menu opens.
3
Click on the required sensor.

Information is displayed about the model, order number, serial number
and firmware version.
4
Click on the Measurement parameters tab.

Window with measurement parameters opens.
5
Click on Relative humidity.

The Relative humidity window opens.